Safety and Efficacy of Arformoterol Tartrate Inhalation Solution in Subjects With Chronic Obstructive Pulmonary Disease

New holter monitoring alerts are defined as those alerts that occurred post-randomization and were not present at baseline.

Patients with glucose values that met low (<=40 mg/dL) or high (>=175 mg/dL) criteria were considered potentially clinically significant.

Patients with potassium values that met low (<=3 mEq/L) or high (>=6 mEq/L) criteria were considered potentially clinically significant.

New Electrocardiogram (ECG) alerts are defined as those alerts that occurred post-treatment and were not present at baseline.

Mean Change in Inspiratory Capacity values from baseline (baseline assessment obtained at Visit 2, pre-dose). Spirometry measurements collected within 6 hours following in-clinic rescue/supplemental medications use were excluded from analysis.

The 6 hour peak change from baseline is the maximum of the post-dose change values through 6 hours at each visit.

Number of subjects with a heart rate that was lower/higher than a set limit and increased/decreased from set baseline limit in beats per minute (bpm)

Supplemental medication usage is recorded throughout the study. MDI stands for metered dose inhaler.

Supplemental medication usage during the study. MDI stands for metered dose inhaler. An actuation is one depression of the device that releases medication.

Rescue medication usage during the study. MDI stands for metered dose inhaler.

Rescue medication usage during the study. MDI stands for metered dose inhaler. An actuation is one depression of the device that releases medication.

Area under the change from baseline curve from 0 to 6 hours. Time-normalized AUC (0-6 hrs) was derived using the linear trapezoidal method.

The transitional focal score (-9 to 9) is the sum of relative change from baseline for the Functional Impairment, Magnitude of Task, and Magnitude of Effort scores (each -3 to 3 scale). A Transitional Dyspnea Index score of -9 represents a maximum degradation of all three tests; a score of 9 represents a maximum improvement of all three tests.

The number of participants with a transitional focal score (range -9 to 9) of >=1 improvement. Transitional focal score compares current health against baseline for the Functional Impairment, Magnitude of Task, and Magnitude of Effort scores. A score of -9 is maximum worsening and 9 is maximum improvement.

The 24 hour trough is the FEV1 value obtained 24 hours post first dose. This value is compared to the baseline FEV1 value.

The global evaluation is a COPD symptoms rating ranging from 1 to 7, with 1=much better and 7=much worse. Ratings were assessed relative to the subject's initial entry into the study.

The global evaluation is a COPD symptoms rating ranging from 1 to 7, with 1 = much better and 7 = much worse. Ratings were assessed relative to the subject's initial entry into the study.

The BODE index (0=relative health and 10=severe chronic obstructive pulmonary disease) is a multi-dimension COPD grading system that incorporates body-mass index (B), degree of airflow obstruction (O), dyspnea (D), and exercise capacity (E) as measured by the 6-minute walk test. Scores were derived using pre-dose assessments from each visit.

Mean change from baseline in distance walked (meters)

Scores are expressed as a mean change from baseline of overall impairment (total score). The questionnaire has a scale of 100 which represents worst possible health status to 0 which indicates best possible health status.

Scores are expressed as the number of participants with >= 4 unit improvement in overall impairment (total score), where 100 represents worst possible health status and 0 indicates best possible health status.

Scores range from 0 to 4, with a score of 4 indicating that a subject is too breathless to leave the house or becomes breathless when dressing or undressing. The highest numbered question to which the subject answered 'Yes' is the Dyspnea Scale Score.

The percentage of participants with a transitional focal score (range -9 to 9) of >=1 improvement. Transitional focal score is the sum of the Functional Impairment, Magnitude of Task, and Magnitude of Effort scores. A score of -9 is maximum worsening and 9 is maximum improvement.

Percent of participants with a >=4 unit improvement in the overall impairment (total score) of the St. George's Respiratory Questionaire. This questionaire uses a 100 - 0 scale, where 100 represents the worst possible health status and 0 indicates the best possible health status.

This test measures the participants' level of fitness. It is a measure of the distance the participant can walk in 6 minutes.

The investigator global evaluation is reported by the study investigator. It is a COPD symptoms rating ranging from 1 to 7, with 1 = much better and 7 = much worse.

A questionnaire to assess respiratory health. Scores are expressed as a percentage of overall impairment (total score), where 100 represents the worst possible health status and 0 indicates best possible health status.

The subject global evaluation is reported by study subjects/participants. It is a COPD symptoms rating ranging from 1 to 7, with 1 = much better and 7 = much worse.

Inspiratory capacity is the maximum volume that can be inhaled.

Forced Expiratory Volume in one second